13421281440

Names of 13421281440

• Cardinal: 13421281440 can be written as Thirteen billion, four hundred twenty-one million, two hundred eighty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.342128144 × 10¹⁰

Factors of 13421281440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3994446

Divisors of 13421281440

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 3994429 7988858 11983287 15977716 19972145 23966574 27961003 31955432 39944290 47933148 55922006 59916435 63910864 79888580 83883009 95866296 111844012 119832870 127821728 139805015 159777160 167766018 191732592 223688024 239665740 279610030 319554320 335532036 383465184 419415045 447376048 479331480 559220060 639108640 671064072 838830090 894752096 958662960 1118440120 1342128144 1677660180 1917325920 2236880240 2684256288 3355320360 4473760480 6710640720 13421281440
• Sum of all divisors σ(n): 48316625280
• Sum of proper divisors (its aliquot sum) s(n): 34895343840
• 13421281440 is an abundant number, because the sum of its proper divisors (34895343840) is greater than itself. Its abundance is 21474062400

Bases of 13421281440

• Binary: 1100011111111110001000000010100000₂
• Hexadecimal: 0x31FF880A0
• Base-36: 65YON1C

Squares and roots of 13421281440

• 13421281440 squared (13421281440²) is 180130795491688473600
• 13421281440 cubed (13421281440³) is 2417586102305034184989609984000
• The square root of 13421281440 is 115850.2543803853
• The cube root of 13421281440 is 2376.4644819689

Scales and comparisons

• 13,421,281,440 seconds is equal to 426 years, 39 weeks, 1 day, 21 hours, 44 minutes.
• To count from 1 to 13,421,281,440 would take you about eight hundred fifty-three years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 13421281440 cubic inches would be around 198 feet tall.

Recreational maths with 13421281440

• 13421281440 backwards is 04418212431
• 13421281440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13421281440's digits is 30
• More coming soon!